How Does Inhibition of an Enzyme- Catalyzed Reaction by a Competitive

How does inhibition of an enzyme- catalyzed reaction by a competitive inhibitor differ from inhibition by a noncompetitive inhibitor?

A) Competitive inhibitors bind to the active site of the enzyme; noncompetitive inhibitors bind to a different site.
B) Competitive inhibitors bind to the enzyme reversibly; noncompetitive inhibitors bind to it irreversibly.
C) Competitive inhibitors change the enzyme's tertiary structure; noncompetitive inhibitors cause polypeptide subunits to dissociate.
D) Competitive inhibitors interfere with the enzyme; noncompetitive inhibitors interfere with the reactants.